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Arize drops published overage rates for AX Pro

Arize AI pricing

Arize removed the explicit $10-per-million-spans and $3-per-GB overage rates from its pricing page; headline prices ($0 Free, $50 Pro) and included quotas are unchanged, but overage pricing is no longer publicly disclosed.

Before

AX Pro overages disclosed at ~$10 per million trace spans and ~$3 per GB beyond the 50k-span/10GB monthly allotment

After

AX Pro overage rate is no longer stated on the public pricing page; only included quotas (50k spans, 10 GB, 30-day retention) are shown

Arize rebuilt its pricing page into a collapsible feature-comparison table (Core Platform, Observability, Evaluation, Experimentation, Agent Swarms, Security, Support). In the process, the explicit “Additional span traces” ($10 per million) and “Additional GB” ($3 per GB) overage-rate rows present as of the June 2026 capture were removed. A re-capture with every accordion section expanded confirms these figures no longer appear anywhere on the page. AX Free ($0), AX Pro ($50/month), and AX Enterprise (custom) headline prices, along with included spans/GB/retention per tier, are unchanged.

From Arize AI's pricing timeline
AX Pro overage rate disclosure removed

Arize rebuilt its pricing page into a collapsible feature-comparison table (Core Platform, Observability, Evaluation, Experimentation, Agent Swarms, Security, Support) and dropped the previously published $10-per-million-span and $3-per-GB overage rates for AX Pro. Headline prices (AX Free $0, AX Pro $50/mo, AX Enterprise custom) and included quotas (50k spans/10 GB on Pro) are unchanged; only the per-unit overage rate is now undisclosed, confirmed absent even with every accordion section expanded.

About Arize AI
arize.com ↗

Arize AI prices AI observability across four tiers: free Phoenix OSS (self-hosted), AX Free ($0, 25k spans/mo, 1 GB, 15-day retention), AX Pro ($50/mo, 50k spans/mo, 10 GB, 30-day retention), and custom AX Enterprise.

Pricing model freemiumhybrid
Billing units trace spansgb ingested
Sales motion self serveplgsales led
Free tier
Yes
Commits
None
Transparency
public

Arize AI pricing history

  1. Jul 2026
    AX Pro overage rate disclosure removed
  2. Jun 2026
    AX tiering: Free / Pro $50 / Enterprise + dual-axis overages
  3. Feb 2025
    $70M Series C; hard pivot to LLM/agent observability
  4. Jan 2023
    Phoenix open-source LLM tracing/eval launched
  5. Jan 2020
    Arize AI founded; launches ML observability
Full Arize AI timeline
All pricing activity